"""
this is aa01.py
"""


class Student:
    """
    this is aa01 class Student
    """

    company = "Dalian"
    __count = 0

    def __init__(self, name, sco) -> None:
        self.name = name
        self.__sco = sco
        Student.__count += 1

    def say_sco(self):
        print(self.__sco)
        print(Student.company)
        print(Student.__count)


if __name__ == "__main__":
    zhangsan = Student("Zhang san", 80)
    zhangsan.say_sco()
    print(zhangsan._Student__count)
